If memory is constantly full then your computer needs more RAM. If it is skipping, then check CPU and Memory usage under the Performance tab. Does the computer need more RAM?Ĭlose other programs, click the Start Button > type Task Manager > click View Running processes with Task Manager > click the Performance tab Other reasons include too many programs on startup, malware, possible virus infection, poor maintenance of temporary files, and the Windows registry.

This can happen if many programs are open at the same time. You may experience video slow-downs if your computer is running low on RAM. Poor video performance has less to do with the Quicktime software and more to do with your computer’s hardware. You can re-install Quicktime by downloading it from here. If Quicktime is not starting or if it freezes when you start it, then the cause might have been a corrupt installation file. The Quicktime player can be used to play different file formats, and it is free. Quicktime is also available for the Microsoft Windows operating system and Linux. It is the main video playback software for Macintosh computers. Wally’s Answer: Video playback performance is mainly linked to your computer’s hardware, but there can be various other reasons for choppy video playback on the Quicktime video player. Setting up weekly (or daily) automatic scans will help prevent system problems and keep your PC running fast and trouble-free.

Step 3 : Click “Repair All” to fix all issues.

Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.

Step 1 : Download PC Repair & Optimizer Tool (WinThruster for Win 10, 8, 7, Vista, XP and 2000 – Microsoft Gold Certified).

Before addressing any computer issue, I always recommend scanning and repairing any underlying problems affecting your PC health and performance:

Quicktime windows 8.1